Trixie, Usherette

Ward {2}
At the beginning of each end step, add a Ticket counter to Trixie for each creature that left the battlefield each turn.
At the beginning of your upkeep, Remove all Ticket counters from Trixie. Create X 0/1 white Transylvanian creature tokens called Audience Member with "Sacrifice this creature: add {c} to your mana pool."